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Phys.org / Largest catalog yet of how human cells read DNA shows how chemical marks alter genetic instructions

Every cell in the body contains essentially the same DNA, yet a brain cell behaves differently from a muscle cell or an immune cell. The difference lies largely in how each cell reads its genetic instructions.

Aug 18, 2026
Phys.org / Molecular memory: How a mother's age echoes in her offspring's cells

In humans and many other animals, a mother's age can affect the physical and behavioral characteristics of the next generation. Scientists call these changes maternal age effects, and while they are widespread across the ...

Aug 17, 2026
Phys.org / 'Hidden stars' suggest that distant galaxies are much more massive than they appear

Astronomers have discovered that the most massive galaxies in the early universe contain far more small stars than expected. As a result, these early galaxies were likely much more massive than initial measurements suggested. ...

Aug 18, 2026
Phys.org / Artificial intelligence acts as an 'ideological chameleon' and may deepen political polarization

Researchers at the State University of Campinas (UNICAMP) in the state of São Paulo, Brazil, examined the ideological stance of large language models—artificial intelligence systems trained to understand and generate human ...

Aug 18, 2026
Medical Xpress / Why you move—not just how often—could affect dementia risk

For years, scientists have known that regular physical activity can help lower the risk of dementia. But new USC research suggests that it's not only the amount but also the activity's context—for work or for leisure—that ...

Aug 18, 2026
Phys.org / Scientists 'see' nanoscale forces, providing evidence of electric fields at the air‑water interface

Bubbles are round, and we know surface tension does that. But squeeze that gas-liquid boundary into a space only a few tens of nanometers wide—could other forces be at work?

Aug 18, 2026
Phys.org / A single asteroid impact may explain the appearance of Mars' moon Deimos

Deimos, the smaller and outermost of Mars' two moons, is roughly oval in shape and has a deep depression at its south pole. Unlike its heavily scarred sister moon, Phobos, Deimos is covered by a loose layer of dust and rubble—a ...

Aug 18, 2026
Medical Xpress / Experimental pill targets nerve pain pathway, cutting opioid use after abdominal surgery

Opioids can be highly effective at relieving moderate to severe pain, whether it comes from surgery, an injury or conditions such as cancer. They work by activating opioid receptors in the brain and body, which block pain ...

Aug 17, 2026
Medical Xpress / The hidden health cost of dollar store groceries

While consumers may save a few bucks on groceries at dollar stores, they end up paying a higher price with their health. New UC Riverside research shows a link between dollar store food quality and higher rates of obesity, ...

Aug 18, 2026
Phys.org / New study links bad bosses with greater work intensity

Work intensity is significantly higher under poor line managers, according to new research led by Bayes Business School (City St George's, University of London) that could have strong implications for global occupational ...

Aug 18, 2026
Phys.org / New photonic crystal method improves single-photon sources for quantum networks

Quantum communication promises many advantages over today's standard technologies, including absolutely secure transmission of large amounts of data. However, it requires single photons—and generating them is very difficult. ...

Aug 18, 2026
Phys.org / Dark matter may be gravitationally lensing a likely source of cosmic neutrinos

Astronomers have discovered that the jet of a distant blazar has been gravitationally lensed by an unseen source of dark matter. Led by Silke Britzen at the Max Planck Institute for Radio Astronomy in Germany, the team's ...

Aug 17, 2026